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2015-01-01T20:16:46+05:30

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Diamond has a crystal lattice.
The structure of Diamond extends in space and produces a rigid three-dimensional network of carbon atoms.In this structure, directional covalent bonds are present throughout the lattice.
Even though the single bond is the weakest covalent bond, it is very difficult to break extended covalent bonding and, therefore, diamond is the hardest substance ever on earth.
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